I have a Nikon d5000 and just purchased a Tokina 11-16 lens. I was taking picture of a dog 1-2 meters away during winter at mid day today. Using the aperture priority setting, I set the camera to ISO ...

I imported about 500 images into Aperture (mostly CR2, but some jpg), and for some reason they're not showing up in my library.
If I right click on my library and select "Show Package Contents" and ...

I am looking at exif data of one of my image that i took with Nikon 35mm f/1.8 lens. While the exif information of my actual aperture is correct, max aperture displayed is 1.6 for the lens which is ...

I just got this lens and I really love it, but I can't seem to figure out why it will only take pictures at f/1.8. If I attempt to change the lens aperture setting, it says the aperture must be set at ...

Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length (the kit lens for my T3i)?
I'm looking for a cheap lens that offers a wide ...

My camera has narrowest aperture of f8. To increase depth of field, could I place an opaque "filter" or lens-cap with a small hole, e.g. 12 mm for f16, on the lens? I realize that at short f.l. the ...

I found How can I use wide aperture with fill flash? and How can I use flash with large apertures? while trying to find a solution for using a large aperture to get DOF with the flash setup I have.
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I recently bought an adapter to make the om-system mount of my Olympus Zuiko 50mm f/1.8 fit my Canon 60D. I experimented a bit shooting in Av, but still don't get how the setting given to the aperture ...

Just started learning photography and ordered a 35mm f1.8G ED Nikon lens. I understand it is a prime lens, and doesn't zoom in or out, but the f number there doesn't show any change from 1.8 when I ...

I have nikon d7000 and I thought until today that I can't change aperture on the fly. Here is what I found . Go to shooting menu -> movie settings -> and set manual movie settings to OFF
This allows ...

I just got a used Nikon 300mm f/4 AF (the older, non-AF-S version), and unmounted, when set to f/4, the aperture blades are still slightly visible (you can push the aperture lever on the lens a bit to ...

I know about 17-55 f2.8 and the likes of it, but I am talking about something say 18-135 f2.8. There exists 70-200mm f2.8 and the range (200-70 = 130mm) is much bigger than in 18-135.
I am aware of ...

I have tried taking a few portraits in my living room, using studio flash. I'm still new to it, so my lighting setups may not be great.
I have found sometimes that I can shoot 3 or 4 shots in a row - ...

As an example, say you have two lenses:
300mm, f/2.8 being used at f/8
300mm, f/4 being used at f/8
My understanding is that by definition the amount of light coming through the aperture means that ...

I own a Nikon d5300 camera and I recently purchased a Nikon 200mm f/4.0D ED-IF Micro-Nikkor lens for close-up photography. When I was testing it out today, I was shooting at f22, and my shots looked ...

How do I calculate the aperture size and area, considering an 35mm equivalent focal length value and non-equivalent aperture f-number (in terms of exposure, no multiplication of the crop factor of the ...

Not long ago, my father gave me his old Nikkor 28 f/2.8D lens which seems to be in perfect shape despite being at least 15 years old. The most noticable difference is the aperture ring which non of my ...

Can I create a smart album that searches for a keyword in photos, then shows all the images in the stacks containing those photos?
For instance, I have a bunch of stacks containing 2 photos each, one ...

This answer about a lens adapter with a mechanical aperture control (like these 1,2) got me thinking - Is it possible to control the aperture of a lens in this way? To me the answers to this question ...

With common lenses the aperture is controlled by a mechanism called an "iris."
But, especially with cine/video-oriented lenses, I often see the term "iris" used as an apparent synonym for aperture. ...